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#1 |
Registered User
Join Date: Feb 2005
Location: Bay Area, California
Posts: 995
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Black Magic Electric Fan Install
Howdy all. As promised, here is the lowdown of my fan install.
Granted, my truck is not a hot rod, on purpose. It has a pretty mild 307 with a RV cam and dual exhaust. So, Im not breaking any HP records here, maybe 250? Anyway, I wanted to try out a single fan setup that I could hide up under the stock shroud to make the engine compartment look cool, while getting the efficiency bennefit of an electric fan. From what I understand, this cooling setup may not be strong enough for a more aggressive engine. I got a Black Magic 150 kit for $200. And to be honest I was a little dissapointed when I opened the box. The mounting brackes seemed all wrong. The unit is designed to be mounted with big huge brackets on the top and bottom that would mount above and below the radiator. Well, there really isnt much space for that on this truck. Plus the big brackets (they are like 7" deep" would make it not fit under the stock shroud like I wanted). So, I hmmmd and hawwwwd until I decided to mount the fan on its side. First I removed the stock fan and shroud, and got some new 3/4" bolts to bolt the pully back on without the fan. The old bolts were way too long with the fan removed. To mount it I had to make new brackets that bolted directly to metal supports on the radiator. This is actually what took the longest to do because I had to knotch the top and bottom so the shroud would still fit in place. I used some 3" x 18" angle steel. After I got it mounted (very rigid I might add) I wired it up according to the instructions. Easy set up as I do not have AC. A high voltage power line to the battery, a low voltage line to the fuse box for a acc-on, and a ground line. It also supports a hook up for AC and a manual switch, but I didnt use it. Here is it all buttoned up under the stock shroud. When I was testing it the unit turned on a little late for my liking. It waited until the temp guage was half way up before kicking in even with the therm switch at its coolest adjustment. So I went back and re-read the manual and it said to put the little probe near the top hose, I put it in the wrong place. So I moved it and it kicks in much earlier now. Im still testing it out today but I drove into work today and it turned on when it was supposed to. One of my hopes is that this will increase my MPG too. I will post if it does after a tank or two of gas....
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1971 Chevy C10 Shortbed Stepside, 307v8 3-on-the-tree |
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#2 |
Registered User
Join Date: Sep 2003
Location: Boise ID
Posts: 609
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Re: Black Magic Electric Fan Install
Thanks for the thread! Very informative.
Gary
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"72" Red CORVETTE 4-speed 350 "70" Chevy Short Bed early stages of resto. Edel 600 cfm carb Weiand Stealth Intake HEI shorty Headers 4/2 Drop 295 50R 15 TOYO on 10 inch wide corvette rally rims at all 4 corners. "CHEVY RULES" ![]() |
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#3 |
chevy truck fan
Join Date: Mar 2005
Location: Gilbert, arizona 85298
Posts: 1,990
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Re: Black Magic Electric Fan Install
farside 847,
i am going to do the same thing, i was wondering if that is the same "blackmagic" that is made by deralle (??) it claims to pull 3300 cfm if it is. i was wondering, it doesnt seem to cover the full radiator, is that right?? i am probably either going to get the same one or a dbl fan from flex-a-lite, although much more money. you said at the beginning that you mounted it on it's side, would it match our radi. size (full coverage) if mounted in the right side up (stock) location??? hope overall you are happy with it. let us know!! thanks!! rodstored-72 |
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#4 | |
Registered User
Join Date: Feb 2005
Location: Bay Area, California
Posts: 995
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Re: Black Magic Electric Fan Install
No, a square fan enclosure will never have full coverage with a rectagular radiator. I would say there was at least 3" on eithor side uncovered no matter what way it is installed.
So far, its worked like a charm. Good luck! Quote:
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1971 Chevy C10 Shortbed Stepside, 307v8 3-on-the-tree Last edited by farside847; 01-30-2006 at 03:28 PM. |
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#5 |
It's Done When It Runs!!
Join Date: Sep 2002
Location: Jacksonville, FL (Orange Park)
Posts: 220
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Re: Black Magic Electric Fan Install
Where did you get that setup? Looks too easy NOT to do. Thanks in advance.
Jake
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#6 | |
Registered User
Join Date: Feb 2005
Location: Bay Area, California
Posts: 995
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Re: Black Magic Electric Fan Install
Quote:
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1971 Chevy C10 Shortbed Stepside, 307v8 3-on-the-tree |
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#7 |
It's Done When It Runs!!
Join Date: Sep 2002
Location: Jacksonville, FL (Orange Park)
Posts: 220
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Re: Black Magic Electric Fan Install
Great, thanks
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#8 |
On the college boy budget...
Join Date: Oct 2005
Location: Athens, Georgia
Posts: 370
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Re: Black Magic Electric Fan Install
Cool setup farside thanks for posting it, good ingenuity too. I'm still waiting for mine to come in, hopefully it'll be here in the next day or so. The fan that this black magic one is replacing quit on me Friday so the truck is down at the moment, thankfully my boss is letting me use his '03 Silverado so I got wheels to get around in.
I'm gonna try to use the existing bracket for the new fan, I guess we'll see how that works out. The more I look at it the more I like how you got the thing to work with the stock shroud, definitely cool. My shroud is long gone but I might try and do this at some point, it'd give me an excuse to go the junkyard and blow time on the truck.
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-'68 C10 short/step- 350/350 |
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#9 | |
Registered User
Join Date: Feb 2005
Location: Bay Area, California
Posts: 995
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Re: Black Magic Electric Fan Install
Quote:
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1971 Chevy C10 Shortbed Stepside, 307v8 3-on-the-tree |
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#10 |
On the college boy budget...
Join Date: Oct 2005
Location: Athens, Georgia
Posts: 370
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Re: Black Magic Electric Fan Install
Just got my fan all done and the truck back up and running, definitely pleased with it. The bracket that the old fan was on got tossed so I just used the one the fan came with, maybe not the cleanest look but no doubt better than what was on there so it works for me. I haven't had a chance to drive the truck a whole lot but from what I can tell I would recommend this to anyone.
I did find one thing during the past week. My boss let me use his '03 Silverado, and while yeah its nice and has a good sound system and above all else is quite fast, I was really ready to get my truck back. Theres something bout our old trucks that even all the benefits and creature comforts of a new Chevy truck can't replace. Of course maybe thats just cause I'm still in my youth and I don't have anything else to worry about.
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-'68 C10 short/step- 350/350 |
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#11 |
Its Magically Delicious
Join Date: Jan 2003
Location: oregon
Posts: 2,398
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Re: Black Magic Electric Fan Install
This needs to be added to the FAQ section
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71 C10 LWB 350sbc -TH350 12 bolt 3.42 Posi Of all my favorite things to do, The utmost is to have a brew. My love grows for my foamy friend, with each thirst-quenching elbow bend. Beer so frosty, smooth, and cold it's paradise pure liquid gold. Yes beer means many things to me that's all for now cus I gotta pee. |
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